When it comes to lab-grown diamonds, two primary methods dominate the market: High Pressure High Temperature (HPHT) and Chemical Vapour Deposition (CVD). Each method has its unique characteristics, advantages, and appeal. Here’s a closer look to help you understand the differences and select the right option for your next piece of jewellery.

What Are HPHT Diamonds?

HPHT diamonds are created by replicating the natural conditions under which diamonds form deep within the Earth. This method employs extreme heat and pressure to transform carbon into diamonds. The result is a diamond that is chemically and structurally identical to natural stones, often showcasing vibrant colours due to the presence of trace elements.

Benefits of HPHT Diamonds:

• Natural Appearance: HPHT diamonds can display unique colours and clarity.
• Established Process: This method has been used for decades and has a proven reliability in producing high-quality diamonds.

What Are CVD Diamonds?

CVD diamonds are produced using a different technique, involving the deposition of carbon gases in a controlled environment. This method allows for precise control over the diamond's growth, resulting in high-quality, clear diamonds.

Benefits of CVD Diamonds:

• Eco-Friendly: CVD diamonds require less energy and resources compared to HPHT.
• Versatile Quality: This method can produce diamonds with specific characteristics, such as clarity and size, tailored to your preferences.

• Production Process: HPHT uses high pressure and heat, whereas CVD employs gas-based carbon deposition.
• Colour and Clarity: HPHT may result in greater colour variation, while CVD typically yields diamonds with high clarity.
• Cost: Pricing can vary between the two methods, often influenced by the quality and characteristics of the finished diamond.

Choosing between HPHT and CVD diamonds ultimately depends on your personal preferences and values. Whether you prioritise eco-friendliness, colour variety, or clarity, both methods offer stunning options that rival natural diamonds.

At Guthrie Jewellery, we are committed to helping you find the perfect lab-grown diamond for your needs. Explore our collection today and discover the beauty and brilliance of these remarkable gems.